Combined gas treatment tube and enclosing guard tube



FIG. 1 is a side elevational view of a combined gas treatment tube andenclosing guard tube, showing my new design, the opposite sideelevational view being identical thereto;

FIG. 2 is a front elevational view thereof, the rear elevational viewbeing identical thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a side elevational view of a second embodiment of FIG. 1, theopposite side elevational view being identical thereto;

FIG. 7 is a front elevational view thereof, the rear elevational viewbeing identical thereto;

FIG 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a perspective view thereof;

FIG. 11 is a side elevational view of a third embodiment of FIG. 1, theopposite side elevational view being identical thereto;

FIG. 12 is a front elevational view thereof, the rear elevational viewbeing identical thereto;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof; and

FIG. 15 is a perspective view thereof.

The ornamental design for a combined gas treatment tube and enclosingguard tube, as shown and described.